I wanted to wait until after my third cycle with the cup (since I'm a brand new cup user) but since I'm happily awaiting its arrival, it's nowhere to be found.

I got the light blue one on amazon (they've since added more colors) in the smaller size. My cup matches up to the measurements found here: http://menstrual-cups.livejournal.com/3329369.html I think the silicone is on the stiffer side, when I pinch the base right above the stem the rim doesn't move. I also feel a little bit of pressure on my bladder when I wear it. I've never had a issue keeping a grip on the stem, but I have found that it's really difficult to clean thoroughly. I've had some trouble getting it to pop open, but this might be due to the two stuction holes, or just my greenness. Also after two cycles my cup is stained.

I also have quite a bit of difficulty getting this cup to pop open. I did trim the stem off, but I do that with all my cups, not because this stem is particularly uncomfortable. So far what's worked best for me is running cold water over the cup to temporarily stiffen it before insertion, then using the c fold with the c pointed to my back. Even then it doesn't open 100% of the time perfectly, but once I get it in properly it's quite comfortable and works well.

I insert with the pinch down fold, and I've found that keeping the two air holes against the open part, in other words I don't press the air holes against the silicone edge of the cup, I've gotten it to open up 80% of the time.